Special Stones, Four Peaks Amethyst Trillion Ring

Now in the permanent collection of the Smithsonian Museum of Natural History in Washington D.C. Amethyst from Four Peaks, AZ with red flashes, concave trillion cut, 10 ct. Diamonds, .84ctw. SI1/GH. Set in 18k white gold. Stone mined and cut by Darryl Alexander. Size 7